For Barbara and Jeffrey Rosenberg, it took one renovation to understand they wanted one other.

In the summertime of 2017, the couple moved into their freshly overhauled second dwelling in Sag Harbor, N.Y., and had been delighted to have a home that catered to their each whim and served as a powerful vacation spot for entertaining household and associates.

So once they returned to their major dwelling, a home in Delray Seashore, Fla., which they purchased for $2.75 million in 2005, they couldn’t assist however really feel somewhat deflated. “The minute I walked into our home in Florida, I stated, ‘This home must be redone,’” stated Mr. Rosenberg, 74, who has largely retired from a family-run actual property funding and growth firm he helped construct. “We obtained spoiled in Sag Harbor.”

The 7,760-square-foot home had been designed in a recent neo-Classical model, and that not felt proper for them. The coffered ceilings, the overwrought moldings, the ornamental columns, the divided-light home windows, the antiques — all of it instantly appeared previous.

In addition they needed to right annoyances they’d put up with for years, together with the kitchen, which was weirdly cramped contemplating the dimensions of the home — and hardly perfect for Mr. Rosenberg, who loves few issues greater than cooking elaborate meals for visitors.

“The kitchen was utterly devoid of home windows,” he stated, “so it had no pure mild.”

Searching for a brand new imaginative and prescient for the home, they turned to Allen Saunders, a Miami-based inside designer who had conceived a clean-lined, trendy dwelling for his or her son in close by Boca Raton.

Though the couple had particular concepts for what they needed within the food-focused areas — an expanded kitchen, a big wine room, an Italian pizza oven within the yard — they gave Mr. Saunders just one directive for the remainder of the home: “We need to stroll in and go, ‘Wow,’” Mr. Rosenberg stated. “We actually stated to Allen, ‘You’ve obtained carte blanche to do no matter you could do.’”

Relishing the problem, Mr. Saunders drew up plans for a down-to-the-studs intestine renovation that modified the ground plan and gave the house an unapologetically trendy inside with black, white and aubergine particulars, together with loads of conversation-starting items.

The design transformed what had been a five-bedroom home right into a three-bedroom — a major suite, a visitor bed room and a bunk room for the couple’s grandchildren — with a gymnasium, a house theater and loads of house for entertaining.

Simply contained in the entrance entrance is a front room centered round an infinite chandelier with 55 purply handblown glass bubbles from Cameron Design Home. “That’s speculated to be a ‘wow’ characteristic,” Mr. Saunders stated. “Jeff collects wine, so we performed with that concept, with the coloration and planning it virtually like grapes.”

The lounge is open to the eating space, the place Mr. Saunders put in two customized high-gloss lacquer eating tables, finish to finish, for each intimate household dinners and bigger gatherings. “We felt it could be unusual to have 4 individuals sitting at a huge desk,” he stated. “So we broke the desk into two: one that may simply sit eight or 9 individuals, and one which sits 4 or 5 individuals.”

Above the tables, a light-weight set up of cast-glass droplets from Ochre is equally divided into two sections that may be managed individually to light up a single space or the whole expanse.

For Mr. Rosenberg’s showpiece kitchen, Mr. Saunders designed an area with two islands: a hardworking one, with black-granite and butcher-block counters, for meals preparation; and a sleeker, 10-foot unit with curved ends, bronze-finished metallic doorways and a Calacatta Viola marble prime, for serving. Three shiplap-paneled doorways conceal the fridge, freezer and entrance to the pantry.

Within the major suite, Mr. Saunders added extra aubergine particulars, together with an upholstered headboard that stretches practically to the ceiling, high-gloss lacquered doorways within the lavatory and slabs of Lilac marble which have refined hints of violet.

After spending roughly two years on the brand new inside, the Rosenbergs had Mr. Saunders rework the out of doors house behind the home, as nicely. There, he changed the spherical pool with an oblong one built-in into a brand new terrace and constructed a wall of green- and bronze-glazed tiles that gives privateness from neighbors whereas amplifying reflections off the water.

“I used the pool as a reflecting pond,” Mr. Saunders stated. “And that wall grew to become a shifting piece of artwork.”

After about 9 months of further development outside, the venture was lastly accomplished final yr, at a price of about $2.5 million.

The couple are “completely thrilled” with the home, stated Ms. Rosenberg, 72, sounding barely in awe of how totally different it seems to be at this time. “We are able to’t consider it.”

The top end result was value it, Mr. Rosenberg added, even when it took longer than they anticipated.

“In case you had requested me whereas we had been going by way of the development course of, and we needed to reside in a rental, we’d have had second ideas about what we had been doing,” he stated. “However all people who goes by way of a renovation, or a knockdown and a rebuild, goes by way of that.”

For weekly electronic mail updates on residential actual property information, enroll right here. Observe us on Twitter: @nytrealestate.